radeonsi: call LLVMAddEarlyCSEMemSSAPass only for LLVM >= 4.0

LLVMAddEarlyCSEMemSSAPass() is defined in LLVM 4.0.

Fixes: 257b538 ("radeonsi: do EarlyCSEMemSSA LLVM pass)

Signed-off-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
index 802e2b9..d5e988e 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
@@ -1451,8 +1451,10 @@ void si_llvm_optimize_module(struct si_shader_context *ctx)
        LLVMAddLICMPass(gallivm->passmgr);
        LLVMAddAggressiveDCEPass(gallivm->passmgr);
        LLVMAddCFGSimplificationPass(gallivm->passmgr);
+#if HAVE_LLVM >= 0x0400
        /* This is recommended by the instruction combining pass. */
        LLVMAddEarlyCSEMemSSAPass(gallivm->passmgr);
+#endif
        LLVMAddInstructionCombiningPass(gallivm->passmgr);
 
        /* Run the pass */